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UNITED STATES PATENT OFFICE.

J OHN F. NOLAN, OF SAN FRANCISCO, CALIFORNIA.

COMPOSITION FOR PREVENTING AND REMOVING RUST.

SPECIFICATION forming part of Letters Patent No. 333,883, dated January5, 1886.

Application filed August 6, 1885. Serial No. 173,793.

To all whom it may concern:

Be it known that I, JOHN F. NOLAN, a citizen of the United States,residing in the city and county of San Francisco, State of California,have invented a new and useful Composition of Matter to be used forPreventing and Removing Rust upon MetalSurfaccs, of which the followingis a description.

My composition consists of the following ingredients,viz: bisulphideofcarbon, one ounce; beeswax, one-quarter ounce; pure sperm-oil, sevenounces. These ingredients are mixed in the following manner: Thebisulphide of carbon and the beeswax are heated together in a closedvessel until the beeswax is thoroughly dissolved. 4 It will then befound the whole mixture will amount to only an ounce, one-quarter ouncehaving been evaporated in the heating. Take the pure spermoil and heatit to a boiling-point, and then add to it the beeswax and thebisulphide-ofcarbon mixture while said mixture is still hot. Agitate theentire mixture until the ingredients are thoroughly combined.

In orderto remove the unpleasant odor, add any suitableflavoring-mattersuch, for example, asthe oil of cassia-of which about ahalf a dram should be added to the proportions above stated.

In using the above-named composition theit will prevent oxidation takingplace, and on a surface which has a slight coating of rust it willremove it.

The bisulphide of carbon in this composition is used as a solvent of thebeeswax, which function it performs in a most complete man- (Nospecimens.)

ner, having no deleterious or oxidizing effect in itself, as would bethe case if othersolvents, such as benzine, were used.

The bisulphide of carbon, by evaporating, leaves a slight coating orfilm of the beeswax and oil upon the surface of the metal. The effect ofthe beeswax in the mixture is to give elasticity to the coating or filmwhich is left upon the surface, and the object of the spermoil,which isnon-drying, is obvious. These ingredients mix thoroughly and completelyin the first place, and the evaporation of the bisulphide ofiflcarbonleavesa perfect and lasting surface of the other ingredients.

I am aware that beeswax has been used as one of the ingredients of arust preventive; but it has been in connection with such otheringredients as rosin, tallow, due. I also know that apaint compoundconsisting of bisulphide of carbon, vulcanized rubber, pitch, tar, andother heavy ingredients has been used for coating all kinds of surfaces;but these compositions of matter are obviouslynot the same as mine.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is

' The herein-described composition of matter to be used for preventingand removing rust from metallic surfaces, consisting of bisulphide ofcarbon, beeswax, and sperm-oil united substantially in the proportionsspecified, and substantially as herein described.

In witness wnereof I have hereunto set my hand.

JOHN F. NOLAN.

Witnesses:

LINCOLN Sonume, S. H. NoURsE.

